wehub-resource-sync
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409 lines
13 KiB
Go
409 lines
13 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package dist
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import (
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"context"
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"fmt"
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"sync"
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"time"
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"github.com/samber/lo"
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"golang.org/x/time/rate"
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"google.golang.org/protobuf/proto"
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"github.com/milvus-io/milvus-proto/go-api/v3/commonpb"
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"github.com/milvus-io/milvus-proto/go-api/v3/msgpb"
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"github.com/milvus-io/milvus/internal/querycoordv2/meta"
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. "github.com/milvus-io/milvus/internal/querycoordv2/params"
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"github.com/milvus-io/milvus/internal/querycoordv2/session"
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"github.com/milvus-io/milvus/internal/querycoordv2/task"
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"github.com/milvus-io/milvus/internal/querycoordv2/utils"
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"github.com/milvus-io/milvus/pkg/v3/metrics"
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"github.com/milvus-io/milvus/pkg/v3/mlog"
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"github.com/milvus-io/milvus/pkg/v3/proto/datapb"
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"github.com/milvus-io/milvus/pkg/v3/proto/querypb"
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"github.com/milvus-io/milvus/pkg/v3/util/commonpbutil"
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"github.com/milvus-io/milvus/pkg/v3/util/merr"
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"github.com/milvus-io/milvus/pkg/v3/util/paramtable"
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"github.com/milvus-io/milvus/pkg/v3/util/timerecord"
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"github.com/milvus-io/milvus/pkg/v3/util/typeutil"
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)
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type TriggerUpdateTargetVersion = func(collectionID int64)
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type NotifyDelegatorChanges = func(collectionID ...int64)
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type distHandler struct {
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nodeID int64
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c chan struct{}
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wg sync.WaitGroup
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client session.Cluster
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nodeManager *session.NodeManager
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scheduler task.Scheduler
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dist *meta.DistributionManager
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target meta.TargetManagerInterface
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mu sync.Mutex
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stopOnce sync.Once
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lastUpdateTs int64
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notifyFunc NotifyDelegatorChanges
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}
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func (dh *distHandler) start(ctx context.Context) {
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defer dh.wg.Done()
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mlog.Info(ctx, "start dist handler", mlog.Int64("nodeID", dh.nodeID))
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var loopWG sync.WaitGroup
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loopWG.Add(2)
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go func() {
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defer loopWG.Done()
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dh.startPullDistLoop(ctx)
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}()
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go func() {
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defer loopWG.Done()
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dh.startDispatchLoop(ctx)
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}()
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loopWG.Wait()
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}
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func (dh *distHandler) startPullDistLoop(ctx context.Context) {
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distInterval := Params.QueryCoordCfg.DistPullInterval.GetAsDuration(time.Millisecond)
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ticker := time.NewTicker(distInterval)
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defer ticker.Stop()
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failures := 0
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for {
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select {
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case <-ctx.Done():
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mlog.Info(ctx, "close dist pull loop due to context done", mlog.Int64("nodeID", dh.nodeID))
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return
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case <-dh.c:
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mlog.Info(ctx, "close dist pull loop", mlog.Int64("nodeID", dh.nodeID))
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return
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case <-ticker.C:
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dh.pullDist(ctx, &failures)
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// only reset when interval updated
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newDistInterval := Params.QueryCoordCfg.DistPullInterval.GetAsDuration(time.Millisecond)
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if newDistInterval != distInterval {
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distInterval = newDistInterval
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select {
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case <-ticker.C:
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default:
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}
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ticker.Reset(distInterval)
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}
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}
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}
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}
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func (dh *distHandler) startDispatchLoop(ctx context.Context) {
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dispatchInterval := Params.QueryCoordCfg.DispatchInterval.GetAsDuration(time.Millisecond)
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ticker := time.NewTicker(dispatchInterval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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mlog.Info(ctx, "close dist dispatch loop due to context done", mlog.Int64("nodeID", dh.nodeID))
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return
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case <-dh.c:
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mlog.Info(ctx, "close dist dispatch loop", mlog.Int64("nodeID", dh.nodeID))
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return
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case <-ticker.C:
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dh.scheduler.Dispatch(dh.nodeID)
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newDispatchInterval := Params.QueryCoordCfg.DispatchInterval.GetAsDuration(time.Millisecond)
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if newDispatchInterval != dispatchInterval {
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dispatchInterval = newDispatchInterval
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select {
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case <-ticker.C:
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default:
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}
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ticker.Reset(dispatchInterval)
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}
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}
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}
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}
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func (dh *distHandler) pullDist(ctx context.Context, failures *int) {
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tr := timerecord.NewTimeRecorder("")
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resp, err := dh.getDistribution(ctx)
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d1 := tr.RecordSpan()
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if err != nil {
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node := dh.nodeManager.Get(dh.nodeID)
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*failures = *failures + 1
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fields := []mlog.Field{mlog.Int("times", *failures)}
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if node != nil {
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fields = append(fields, mlog.Time("lastHeartbeat", node.LastHeartbeat()))
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}
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fields = append(fields, mlog.Err(err))
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mlog.RatedWarn(ctx, rate.Limit(30.0), "failed to get data distribution", fields...)
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} else {
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*failures = 0
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dh.handleDistResp(ctx, resp)
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}
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mlog.RatedInfo(ctx, rate.Limit(120.0), "pull and handle distribution done",
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mlog.Int("respSize", proto.Size(resp)), mlog.Duration("pullDur", d1), mlog.Duration("handleDur", tr.RecordSpan()))
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}
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func (dh *distHandler) handleDistResp(ctx context.Context, resp *querypb.GetDataDistributionResponse) {
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node := dh.nodeManager.Get(resp.GetNodeID())
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if node == nil {
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return
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}
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if time.Since(node.LastHeartbeat()) > paramtable.Get().QueryCoordCfg.HeartBeatWarningLag.GetAsDuration(time.Millisecond) {
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mlog.Warn(context.TODO(), "node last heart beat time lag too behind", mlog.Time("now", time.Now()),
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mlog.Time("lastHeartBeatTime", node.LastHeartbeat()), mlog.Int64("nodeID", node.ID()))
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}
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now := time.Now()
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node.SetLastHeartbeat(now)
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metrics.QueryCoordLastHeartbeatTimeStamp.WithLabelValues(fmt.Sprint(resp.GetNodeID())).Set(float64(now.UnixNano()))
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// skip update dist if no distribution change happens in query node
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if resp.GetLastModifyTs() != 0 && resp.GetLastModifyTs() <= dh.lastUpdateTs {
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mlog.RatedInfo(context.TODO(), rate.Limit(30), "skip update dist due to no distribution change", mlog.Int64("lastModifyTs", resp.GetLastModifyTs()), mlog.Int64("lastUpdateTs", dh.lastUpdateTs))
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} else {
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dh.lastUpdateTs = resp.GetLastModifyTs()
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node.UpdateStats(
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session.WithSegmentCnt(len(resp.GetSegments())),
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session.WithChannelCnt(len(resp.GetChannels())),
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session.WithMemCapacity(resp.GetMemCapacityInMB()),
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session.WithCPUNum(resp.GetCpuNum()),
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)
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dh.updateSegmentsDistribution(ctx, resp)
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dh.updateChannelsDistribution(ctx, resp)
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}
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}
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func (dh *distHandler) SetNotifyFunc(notifyFunc NotifyDelegatorChanges) {
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dh.notifyFunc = notifyFunc
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}
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func (dh *distHandler) updateSegmentsDistribution(ctx context.Context, resp *querypb.GetDataDistributionResponse) {
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updates := make([]*meta.Segment, 0, len(resp.GetSegments()))
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for _, s := range resp.GetSegments() {
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// To maintain compatibility with older versions of QueryNode,
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// QueryCoord should neither process nor interact with L0 segments.
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if s.GetLevel() == datapb.SegmentLevel_L0 {
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continue
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}
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segmentInfo := dh.target.GetSealedSegment(ctx, s.GetCollection(), s.GetID(), meta.CurrentTargetFirst)
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if segmentInfo == nil {
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segmentInfo = &datapb.SegmentInfo{
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ID: s.GetID(),
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CollectionID: s.GetCollection(),
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PartitionID: s.GetPartition(),
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InsertChannel: s.GetChannel(),
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Level: s.GetLevel(),
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IsSorted: s.GetIsSorted(),
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}
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}
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updates = append(updates, &meta.Segment{
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SegmentInfo: segmentInfo,
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Node: resp.GetNodeID(),
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Version: s.GetVersion(),
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LastDeltaTimestamp: s.GetLastDeltaTimestamp(),
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IndexInfo: s.GetIndexInfo(),
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JSONStatsField: s.GetJsonStatsInfo(),
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ManifestPath: s.GetManifestPath(),
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DataVersion: s.DataVersion,
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})
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}
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dh.dist.SegmentDistManager.Update(resp.GetNodeID(), updates...)
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}
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func (dh *distHandler) updateChannelsDistribution(ctx context.Context, resp *querypb.GetDataDistributionResponse) {
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channelMap := lo.SliceToMap(resp.GetChannels(), func(ch *querypb.ChannelVersionInfo) (string, *querypb.ChannelVersionInfo) {
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return ch.GetChannel(), ch
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})
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updates := make([]*meta.DmChannel, 0, len(resp.GetChannels()))
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for _, lview := range resp.GetLeaderViews() {
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channel, ok := channelMap[lview.GetChannel()]
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if !ok {
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// unreachable path, querynode should return leader view and channel dist at same time
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mlog.RatedInfo(ctx, rate.Limit(30), "channel not found in distribution",
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mlog.Int64("collectionID", lview.GetCollection()),
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mlog.String("channel", lview.GetChannel()))
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continue
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}
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delegatorVersion := channel.GetVersion()
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// Get or create channel info
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collectionID := lview.GetCollection()
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channelName := lview.GetChannel()
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channelInfo := dh.target.GetDmChannel(ctx, collectionID, channelName, meta.CurrentTarget)
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var vChannelInfo *datapb.VchannelInfo
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if channelInfo != nil {
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vChannelInfo = channelInfo.VchannelInfo
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} else {
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vChannelInfo = &datapb.VchannelInfo{
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ChannelName: channelName,
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CollectionID: collectionID,
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}
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}
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// Pre-allocate growing segments map
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growings := lo.MapValues(lview.GetGrowingSegments(), func(position *msgpb.MsgPosition, id int64) *meta.Segment {
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return &meta.Segment{
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SegmentInfo: &datapb.SegmentInfo{
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ID: id,
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CollectionID: collectionID,
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StartPosition: position,
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InsertChannel: channelName,
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},
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Node: resp.GetNodeID(),
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}
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})
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// Update DmChannel and register shard leader in same loop
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dmChannel := &meta.DmChannel{
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VchannelInfo: vChannelInfo,
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Node: resp.NodeID,
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Version: delegatorVersion,
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View: &meta.LeaderView{
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ID: resp.NodeID,
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CollectionID: collectionID,
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Channel: channelName,
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Version: delegatorVersion,
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Segments: lview.GetSegmentDist(),
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GrowingSegments: growings,
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NumOfGrowingRows: lview.GetNumOfGrowingRows(),
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PartitionStatsVersions: lview.PartitionStatsVersions,
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TargetVersion: lview.GetTargetVersion(),
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Status: lview.GetStatus(),
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},
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}
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updates = append(updates, dmChannel)
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serviceable := checkDelegatorServiceable(ctx, dh, dmChannel.View)
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// trigger pull next target until shard leader is ready
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if !serviceable {
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dh.lastUpdateTs = 0
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}
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}
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newLeaderOnNode := dh.dist.ChannelDistManager.Update(resp.GetNodeID(), updates...)
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if dh.notifyFunc != nil {
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collectionIDs := typeutil.NewUniqueSet()
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for _, ch := range newLeaderOnNode {
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collectionIDs.Insert(ch.CollectionID)
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}
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dh.notifyFunc(collectionIDs.Collect()...)
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}
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}
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func checkDelegatorServiceable(ctx context.Context, dh *distHandler, view *meta.LeaderView) bool {
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// if status is already set, return directly without creating log object
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if status := view.Status; status != nil {
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if status.GetServiceable() {
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return true
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}
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// Only create log when not serviceable
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mlog.With(
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mlog.Int64("nodeID", view.ID),
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mlog.String("channel", view.Channel),
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).RatedInfo(ctx, rate.Limit(10), "delegator is not serviceable", mlog.Int64("queryViewVersion", view.TargetVersion))
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return false
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}
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// check leader data ready for version before 2.5.8
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if err := utils.CheckDelegatorDataReady(dh.nodeManager, dh.target, view, meta.CurrentTarget); err != nil {
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mlog.RatedInfo(context.TODO(), rate.Limit(10), "delegator is not serviceable due to distribution not ready", mlog.Err(err))
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view.Status = &querypb.LeaderViewStatus{
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Serviceable: false,
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}
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return false
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}
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// if target version hasn't been synced, delegator will get empty readable segment list
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// so shard leader should be unserviceable until target version is synced
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currentTargetVersion := dh.target.GetCollectionTargetVersion(ctx, view.CollectionID, meta.CurrentTarget)
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if view.TargetVersion <= 0 {
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mlog.RatedInfo(context.TODO(), rate.Limit(10), "delegator is not serviceable due to target version not ready",
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mlog.Int64("currentTargetVersion", currentTargetVersion),
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mlog.Int64("leaderTargetVersion", view.TargetVersion))
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view.Status = &querypb.LeaderViewStatus{
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Serviceable: false,
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}
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return false
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}
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view.Status = &querypb.LeaderViewStatus{
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Serviceable: true,
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}
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return true
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}
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func (dh *distHandler) getDistribution(ctx context.Context) (*querypb.GetDataDistributionResponse, error) {
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dh.mu.Lock()
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defer dh.mu.Unlock()
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ctx, cancel := context.WithTimeout(ctx, paramtable.Get().QueryCoordCfg.DistributionRequestTimeout.GetAsDuration(time.Millisecond))
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defer cancel()
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resp, err := dh.client.GetDataDistribution(ctx, dh.nodeID, &querypb.GetDataDistributionRequest{
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Base: commonpbutil.NewMsgBase(
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commonpbutil.WithMsgType(commonpb.MsgType_GetDistribution),
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),
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LastUpdateTs: dh.lastUpdateTs,
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})
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if err != nil {
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return nil, err
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}
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if !merr.Ok(resp.GetStatus()) {
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return nil, merr.Error(resp.GetStatus())
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}
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return resp, nil
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}
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func (dh *distHandler) stop() {
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dh.stopOnce.Do(func() {
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close(dh.c)
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dh.wg.Wait()
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// clear dist
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dh.dist.ChannelDistManager.Update(dh.nodeID)
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dh.dist.SegmentDistManager.Update(dh.nodeID)
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})
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}
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func newDistHandler(
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ctx context.Context,
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nodeID int64,
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client session.Cluster,
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nodeManager *session.NodeManager,
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scheduler task.Scheduler,
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dist *meta.DistributionManager,
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targetMgr meta.TargetManagerInterface,
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notifyFunc NotifyDelegatorChanges,
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) *distHandler {
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h := &distHandler{
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nodeID: nodeID,
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c: make(chan struct{}),
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client: client,
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nodeManager: nodeManager,
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scheduler: scheduler,
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dist: dist,
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target: targetMgr,
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notifyFunc: notifyFunc,
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}
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h.wg.Add(1)
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go h.start(ctx)
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return h
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}
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